mgw: new test TC_two_crcx_mdcx_and_rtp_clearmode

Add a test that uses SDP CLEARMODE towards the MGW. The SDP parameters
generated by the test look as expected when compared to RFC 4040
section 5.

Related: OS#4395
Related: https://www.rfc-editor.org/rfc/rfc4040#section-5
Change-Id: I89c5dfdcd728ab3b50e77c5062f07e1b802b1f01
1 file changed